Embryonic development of the spiny eel, Mastacembelus aculeatus (Bloch, 1786)


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Authors

  • S K Sahoo Central Institute of Freshwater Aquaculture, Kausalyaganga Bhubaneswar - 751 002, Orissa, India
  • S S Giri Central Institute of Freshwater Aquaculture, Kausalyaganga Bhubaneswar - 751 002, Orissa, India
  • A Saha Central Institute of Freshwater Aquaculture, Kausalyaganga Bhubaneswar - 751 002, Orissa, India
  • S Chandra Central Institute of Freshwater Aquaculture, Kausalyaganga Bhubaneswar - 751 002, Orissa, India
  • A K Sahu Central Institute of Freshwater Aquaculture, Kausalyaganga Bhubaneswar - 751 002, Orissa, India
  • N Sarangi Central Institute of Freshwater Aquaculture, Kausalyaganga Bhubaneswar - 751 002, Orissa, India

Abstract

Induced spawning of the freshwater spiny eel, Mastacembelus aculeatus was undertaken to obtain fertilized eggs for studying the embryonic development. The fertilized eggs were sticky, demersal and green in colour. The perivitelline space of fertilized eggs was unequal. Several oil globules were visible on the yolk and sizes varied from 0.1-0.57 mm in diameter. First cleavage appeared
at 50 min, producing two equal blastomeres. The size of blastomeres gets reduced as development proceeds. The fertilized egg took 4 h 10 min to reach morula stage. The hatching of egg started at 31 h 30 min and all the eggs hatched within 37-38 h at 28-29°C. The newly hatched yolksac larvae were 4-5 mm in length.

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Author Biographies

  • S K Sahoo, Central Institute of Freshwater Aquaculture, Kausalyaganga Bhubaneswar - 751 002, Orissa, India
    Central Institute of Freshwater Aquaculture, Kausalyaganga
    Bhubaneswar - 751 002, Orissa, India
  • S S Giri, Central Institute of Freshwater Aquaculture, Kausalyaganga Bhubaneswar - 751 002, Orissa, India
    Central Institute of Freshwater Aquaculture, Kausalyaganga
    Bhubaneswar - 751 002, Orissa, India
  • A Saha, Central Institute of Freshwater Aquaculture, Kausalyaganga Bhubaneswar - 751 002, Orissa, India
    Central Institute of Freshwater Aquaculture, Kausalyaganga
    Bhubaneswar - 751 002, Orissa, India
  • S Chandra, Central Institute of Freshwater Aquaculture, Kausalyaganga Bhubaneswar - 751 002, Orissa, India
    Central Institute of Freshwater Aquaculture, Kausalyaganga
    Bhubaneswar - 751 002, Orissa, India
  • A K Sahu, Central Institute of Freshwater Aquaculture, Kausalyaganga Bhubaneswar - 751 002, Orissa, India
    Central Institute of Freshwater Aquaculture, Kausalyaganga
    Bhubaneswar - 751 002, Orissa, India
  • N Sarangi, Central Institute of Freshwater Aquaculture, Kausalyaganga Bhubaneswar - 751 002, Orissa, India
    Central Institute of Freshwater Aquaculture, Kausalyaganga
    Bhubaneswar - 751 002, Orissa, India

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Issue

Vol. 54 No. 3 (2007)

Section

Note

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How to Cite

Sahoo, S. K., Giri, S. S., Saha, A., Chandra, S., Sahu, A. K., & Sarangi, N. (2011). Embryonic development of the spiny eel, Mastacembelus aculeatus (Bloch, 1786). Indian Journal of Fisheries, 54(3), 333-337. https://epubs.icar.org.in/index.php/IJF/article/view/6950